Structure of guide rails for opening and closing mechanisms

Abstract

To provide a guide rail structure for an opening / closing body capable of realizing a high-strength wind-resistant structure with excellent workability and being used as a fire prevention facility.SOLUTION: A guide rail structure 49 for an opening / closing body, which is fixed to one wall surface 23 of a structure having an opening 13 and guides an opening / closing body 17 moved in a direction parallel to the wall surface 23 at the opening 13, includes a mounting frame 51 formed of a fireproof material and fixed to the wall surface 23, a guide rail 53 detachably fixed to one side surface of the mounting frame 51 for coverage and having a retaining rail section 61 for engaging a wind-resistant hook 59 provided on the opening / closing body, and a housing frame 55 formed of a fireproof material, which is detachably fixed to the other side surface of the guide rail 53 on the side opposite to the mounting frame 51 and covers the other side surface, and to which a signal generating device facing the opening 13 at a predetermined height position from a floor surface 21 is attached, the signal generating device being connected to an opening / closing machine 35 for driving the opening / closing body to open / close through a signal transmitting member inserted into an inner space 63.SELECTED DRAWING: Figure 1

Description

Technical Field

[0005] ,

[0001] The present invention relates to a structure of a guide rail for an opening / closing body.

Background Art

[0002] A guide rail structure for guiding a shutter curtain, which is an opening / closing body that moves in a direction parallel to the opening surface of an opening of a structure such as a house, is disclosed. The guide rail for guiding at least one of the both edge portions of the shutter curtain includes an outer rail having a loose-fitting accommodation portion fixed to the structure and opened by a detachable opening, and an inner rail having a guide groove for guiding the edge portion of the opening / closing body and detachably attached to the detachable opening of the outer rail from a direction parallel to the opening surface of the opening and accommodated in the loose-fitting accommodation portion (see Patent Document 1).

[0003] Further, a guide rail for a shutter having a guide portion for guiding a curtain portion and a frame portion for supporting the guide portion and fixed to a building body is disclosed. The guide rail includes an outer reinforcing member that covers the outer surface of the guide portion and at least the corner portion between the guide portion and the frame portion, and an inner reinforcing member disposed inside the frame portion. The inner reinforcing member and the outer reinforcing member sandwich at least one of a part of the guide portion or a part of the frame portion and are fixed by fixing means penetrating therethrough (see Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, while the guide rail structure in Patent Document 1 achieves high wind resistance, it has the drawback of not considering fire resistance. Furthermore, while Patent Document 2 provides a structure that adds fire resistance to wind resistance, its complex structure makes assembly during construction and disassembly during parts replacement complicated, resulting in reduced workability. In addition, poor workability and low precision in the connections between components during assembly will also reduce the aesthetic appearance.

[0006] The present invention has been made in view of the above circumstances, and its purpose is to provide a guide rail structure for an opening / closing body that can realize a high-strength wind-resistant structure with good workability, and moreover, can be used as a fire protection device. [Means for solving the problem]

[0007] Next, means for solving the above-mentioned problems will be described with reference to drawings corresponding to the embodiments. The structure of the guide rail for an opening / closing body according to claim 1 of the present invention is a structure of a guide rail for an opening / closing body that is fixed to one wall surface 23 inside or outside of a structure having an opening 13, and guides an opening / closing body 17 that moves in a direction parallel to the wall surface 23 in the opening 13, comprising a mounting frame 51 made of fire-resistant material and fixed to the wall surface 23, A guide rail 53 is provided, which has one side detachably fixed to and covered by the mounting frame 51, and which has a retaining rail portion 61 into which a windproof hook 59 provided on the opening / closing body 17 engages, A housing frame 55 is formed of fire-resistant material and is detachably fixed to the other side of the guide rail 53 opposite to the mounting frame 51, covering the other side, and is connected to the opening / closing mechanism 35 that drives the opening / closing body 17 to open and close via a signal transmission member inserted into the inner space 63, and a signal generating device facing the opening 13 at a predetermined height from the floor surface 21 is mounted on it. Equipped with, The housing frame 55 is fixed to the other side of the guide rail 53 and consists of a housing section 65 that opens the inner space 63 along the guide rail 53 through a groove opening 71 provided on the side of the housing section opposite to the guide rail 53, and a cover 67 that covers the groove opening 71 and is detachably fixed to the housing section 65. The housing section 65 has a recessed portion 75 formed in a part of the front piece 73 of the housing section facing the opening 13, where the signal generating device is mounted. The cover 67 is provided with a claw portion 79 on the inner cover piece 81 that engages with the groove opening 71 from the inside, and an L-shaped bent portion 83 on the front cover piece 85 that is fastened to the front housing piece 73 by a fixing means 57 and whose bent tip engages with the stepped portion 75. It is characterized by the following:

[0008] In this structure of the guide rail for the opening / closing mechanism, the guide rail 49 for the opening / closing mechanism 17 is fixed to one of the indoor or outdoor walls 23 of the structure having the opening 13. The one wall 23 is, for example, an indoor wall 23. The guide rail 53 has a retaining rail portion 61 into which the windproof hook 59 of the opening / closing body 17 engages. The guide rail 53 having the retaining rail portion 61 has one side facing the wall surface 23 fixed to the wall surface 23 by a mounting frame 51. On the other hand, the guide rail 53 has a housing frame 55 fixed to the other side opposite to the mounting frame 51. In other words, the guide rail 49 for the opening / closing body is a structure assembled in the order of mounting frame 51, guide rail 53, and housing frame 55 from the wall surface 23 of the structure. As a result, the guide rail 53 having the retaining rail portion 61 is covered in a state where it is sandwiched in the wall thickness direction by the fire-resistant mounting frame 51 and housing frame 55. As a result, the structure of the guide rail for the opening and closing body is such that the guide rail 53, which has a retaining rail portion 61, is fixed to the wall surface 23 by the mounting frame 51. The wind-resistant hooks 59 of the opening and closing body 17 are engaged with the retaining rail portion 61, so that both side edges of the opening and closing body 17 can be firmly and securely prevented from coming off with high strength. Furthermore, the structure of the guide rail for the opening and closing mechanism allows one side of the guide rail 53, which has a retaining rail section 61, to be detachably assembled to a mounting frame 51 that is pre-fixed to the wall surface 23 of the structure. Therefore, during construction, the guide rail 53 can be temporarily attached to the mounting frame 51 and then permanently fixed. When replacing the guide rail, the guide rail 53 can be detached from the mounting frame 51 after releasing its fixation to the mounting frame 51. This eliminates the need for welding or chipping work on the structure, enabling assembly, disassembly, and replacement with good workability. Furthermore, since the mounting frame 51 and housing frame 55 that sandwich the guide rail 53 are both made of fire-resistant material (e.g., steel), the effects of flames during a fire on the retaining rail portion 61 can be suppressed compared to a configuration in which non-fire-resistant material (e.g., aluminum) is used for these components. In other words, the strength (fire resistance) of the opening / closing guide rail 49 when exposed to flames can be increased. Furthermore, the housing frame 55, which covers and fixes the other side of the guide rail 53, has an internal space 63 that can be used as a space for inserting a signal transmission member. Therefore, a signal generating device attached to the surface of the housing frame 55 facing the opening 13 (front piece 73 of the housing section) can be easily connected to the switch 35 using the space 63 of the housing frame 55.

[0009] In addition, In this guide rail structure for opening and closing, the housing frame 55 consists of a housing section 65 and a cover 67 made of fire-resistant material. The housing section 65 is fixed to the other side of the guide rail 53, and the inner space 63 along the guide rail 53 is opened by a groove opening 71 provided on the side of the housing section opposite the guide rail 53. That is, after the housing section 65 is fixed to the guide rail 53, the cover 67 is fixed, and the groove opening 71 is covered by the cover 67. The housing section 65 can be fixed to the guide rail 53 by fixing means 69 through the groove opening 71. The guide rail 49 for opening and closing the door has a housing frame 55 consisting of a housing section 65 and a cover 67 made of fire-resistant material, which is attached to the guide rail 53, so that the other side is covered with fire-resistant material. This provides high fire resistance. In addition, since the housing frame 55 has a space 63 inside, its heat shielding performance against flames during a fire can also be enhanced. The housing section 65 has a recessed section 75 formed in a part of the front piece 73 of the housing section facing the opening 13, where the signal generating equipment is mounted. The recessed section 75 is formed by bending the front piece 73 of the housing section 73 in a stepped shape toward the space 63, so that it is recessed compared to the front piece 73 of the housing section 73. In other words, the recessed section 75 is a vertical groove recessed along the guide rail 53 between the guide rail 53 and the front piece 73 of the housing section 73. The housing section 65 is mounted by inserting a part of the signal generating equipment into a notch 77 formed on the bottom surface of the groove of this recessed section 75. The structure of the guide rail for the opening and closing mechanism is such that a stepped section 75 is formed in the housing section 65, and a notch 77 is formed only in the stepped section 75, eliminating the need to align it with the notch formed in the cover 67. This simplifies alignment and makes installation easy. Furthermore, since misalignment is eliminated, the signal generating equipment can be accurately mounted, eliminating the risk of compromising the aesthetics. In addition, since the notch 77 is provided on the bottom surface of the groove of the stepped section 75, the finished structure of the mounting part is not conspicuous, and the edges of the steel plate material of the cover 67 are not exposed, resulting in a good aesthetic appearance. Furthermore, the cover 67 is secured to the housing section 65 by fastening the front cover 85 to the housing section 73 with the fixing means 57, while the L-shaped bent portion 83 provided at the bent tip of the cover front piece 85 is hooked onto the stepped portion 75. This reduces the number of fastening points, allowing for easy installation and secure fixation to the housing section 65.

[0010] The structure of the guide rail for an opening / closing body according to claim 2 of the present invention is A guide rail structure for an opening / closing body, which is fixed to one wall surface 23 inside or outside of a structure having an opening 13 and guides an opening / closing body 17 that moves in a direction parallel to the wall surface 23 in the opening 13, comprising a mounting frame 51 made of fire-resistant material and fixed to the wall surface 23, A guide rail 53 is provided, which has one side detachably fixed to and covered by the mounting frame 51, and which has a retaining rail portion 61 into which a windproof hook 59 provided on the opening / closing body 17 engages, The structure comprises a fire-resistant material, a detachable and fixed attachment to the other side of the guide rail 53 opposite to the mounting frame 51, covering the other side, and a housing frame 55 on which a signal generating device is mounted, connected via a signal transmission member inserted into the inner space 63 and facing the opening 13 at a predetermined height from the floor surface 21, to the opening / closing mechanism 35 which drives the opening / closing body 17 to open and close. The mounting frame 51 is composed of a fixing frame portion 99 fixed to the wall surface 23 and a support frame portion 101 fixed to one side of the guide rail 53. The support frame portion 101 is characterized in that a claw piece 107 formed on the support frame portion rear piece 105 opposite to the opening 13 is hooked onto the rear piece 103 of the fixed frame portion 99 which is fixed to the wall surface 23, and the front piece 109 of the support frame portion facing the opening 13 is fixed to the front piece 111 of the fixed frame portion 99 by a fixing means 57.

[0011] In this guide rail structure for opening and closing mechanisms, the mounting frame 51 consists of a fixing frame portion 99 fixed to the wall surface 23 and a support frame portion 101 fixed to one side of the guide rail 53. That is, the mounting frame 51 is interposed between the wall surface 23 and the guide rail 53 to support the guide rail 53 on the wall surface 23. The aforementioned housing frame 55 is fixed to the other side of the guide rail 53, which is supported on the wall surface 23 via the mounting frame 51. In other words, the structure of the guide rail for opening and closing mechanisms is arranged in the order of mounting frame 51, guide rail 53, and housing frame 55 from the wall surface 23, and the guide rail 53 is attached to the wall surface 23 in a state where it is sandwiched and covered by the mounting frame 51 and housing frame 55, which are made of fire-resistant material. The mounting frame 51, consisting of a fixed frame section 99 and a support frame section 101, is first fixed to the wall surface 23 by the fixed frame section 99. Meanwhile, the support frame section 101 is fixed in advance to one side of the guide rail 53. In other words, the support frame section 101, together with the guide rail 53, becomes a connecting member for connecting and fixing the guide rail 53 to the fixed frame section 99. Thus, in the structure of the guide rail for opening and closing, in which the fixed frame portion 99 is fixed to the wall surface 23 and the support frame portion 101 is fixed to the guide rail 53, the support frame portion 101 fixed to the guide rail 53 is temporarily supported by engaging with the fixed frame portion 99. This engagement is performed by hooking a claw piece 107 formed on the rear piece 105 of the support frame portion onto the rear piece 103 of the fixed frame portion 99. The support frame portion 101, with the claw piece 107 hooked onto the rear piece 103 of the fixed frame portion, fixes the front piece 109 of the support frame portion facing the opening 13 to the front piece 111 of the fixed frame portion 99 by the fixing means 57. As a result, the guide rail 53 is easily and securely fixed to the wall surface 23 via the mounting frame 51, which is composed of the fixing frame 99 and the support frame 101, by fixing the support frame 101 fixed to the guide rail 53 to the fixing frame 99 fixed to the wall surface 23.

[0012] Claims of the present invention 3 The structure of the guide rail for the opening and closing mechanism described is as described in the claim. 2 The structure of the guide rail for the opening and closing mechanism described above, The housing frame 55 is fixed to the other side surface of the guide rail 53, and a housing portion 65 that opens an inner space 63 along the guide rail 53 to a groove opening 71 provided on the side surface of the housing portion on the opposite side of the guide rail 53, and a cover 67 that covers the groove opening 71 and is detachably fixed to the housing portion 65. A recessed paragraph portion 75 where the signal generating device is attached is formed in a part of the front piece 73 of the housing portion facing the opening 13. The cover 67 is provided with a claw portion 79 that locks from the inside to the groove opening 71 on the rear piece 81 of the cover, and is provided with an L-shaped bent portion 83 on the front piece 85 of the cover that is fastened to the front piece 73 of the housing portion by a fixing means 57 and whose bent tip engages with the paragraph portion 75.

[0013] In the structure of this guide rail for an opening / closing body, the operation is the same as the operation described in claim 2 described above.

[0014] The structure of the guide rail for an opening / closing body according to claim 4 of the present invention is the structure of the guide rail for an opening / closing body described in claim 2 or 3 wherein the rear piece 103 of the fixed frame portion is separated from the rear piece 112 of the fixed frame portion 99 of the fixed frame portion and is formed in a protruding piece shape parallel to the rear piece 112 of the fixed frame portion. The rear piece 105 of the support frame portion 101 is bent and formed parallel to the front piece 109 of the support frame portion. The claw piece 107 is bent and formed perpendicular to the rear piece 105 of the support frame portion. The rear piece 105 of the support frame portion and the rear piece 103 of the fixed frame portion are overlapped, and in a state where the claw piece 107 hangs on the rear piece 105 of the support frame portion and the tip of the claw piece 107 faces the rear piece 112 of the fixed frame portion, the support frame portion 101 is fixed to the fixed frame portion 99. of the present invention.

[0015] In this guide rail structure for opening and closing parts, the right-angle portion consisting of the rear support frame piece 105 and the claw piece 107 allows the support frame 101 to be assembled to the fixed frame 99 from the opening 13 side, and even if the wall surface 23 has an inside corner, the mounting frame 51 can be assembled along this inside corner and the guide rail 53 can be installed.

[0016] Claims of the present invention 5 The structure of the guide rail for the opening / closing mechanism described is: A guide rail structure for an opening / closing body, which is fixed to one wall surface 23 inside or outside of a structure having an opening 13 and guides an opening / closing body 17 that moves in a direction parallel to the wall surface 23 in the opening 13, comprising a mounting frame 51 made of fire-resistant material and fixed to the wall surface 23, A guide rail 53 is provided, which has one side detachably fixed to and covered by the mounting frame 51, and which has a retaining rail portion 61 into which a windproof hook 59 provided on the opening / closing body 17 engages, The structure comprises a fire-resistant material, a detachable and fixed attachment to the other side of the guide rail 53 opposite to the mounting frame 51, covering the other side, and a housing frame 55 on which a signal generating device is mounted, connected via a signal transmission member inserted into the inner space 63 and facing the opening 13 at a predetermined height from the floor surface 21, to the opening / closing mechanism 35 which drives the opening / closing body 17 to open and close. The guide rail 53 is composed of a guide rail body 87 and a retaining rail portion 117 separate from the guide rail body 87, wherein the retaining rail portion 117 is provided with a fixing flange portion 115 on only one side, and the fixing flange portion 115 is fixed to the inner surface of one side of the guide rail body 87.

[0017] In this guide rail structure for opening and closing, the retaining rail portion 117 has a fixing flange portion 115 parallel to the wall surface 23 on one side of the slit 97. The fixing flange portion 115 may be provided only on the housing portion side, for example, or conversely, only on the support frame portion side. The fixing flange portion 115 is fixed by rivets 69 that pass through the fixing flange portion 115, the guide rail body 87, and the housing portion 65. As a result, when wind pressure is applied to the shutter curtain 17 that widens the guide opening 89 of the guide rail body 87, only the fixing flange 115 on one side of the retaining rail portion 117 is fixed to the guide rail body 87. Therefore, the slit 97 of the retaining rail portion 117 does not open along with the widening opening 89, making it difficult for the wind-resistant hook 59 to come loose.

[0018] Claims of the present invention 6 The structure of the guide rail for the opening and closing mechanism described is as described in the claim. 5 The structure of the guide rail for the opening and closing mechanism described above, The housing frame 55 is fixed to the other side of the guide rail 53 and consists of a housing section 65 that opens the inner space 63 along the guide rail 53 through a groove opening 71 provided on the side of the housing section opposite to the guide rail 53, and a cover 67 that covers the groove opening 71 and is detachably fixed to the housing section 65. The housing section 65 has a recessed portion 75 formed in a part of the front piece 73 of the housing section facing the opening 13, where the signal generating device is mounted. The cover 67 is characterized by having a claw portion 79 on the inner cover piece 81 that engages with the groove opening 71 from the inside, and an L-shaped bent portion 83 on the front cover piece 85 that is fastened to the front housing piece 73 by a fixing means 57 and whose bent tip engages with the stepped portion 75.

[0019] In the structure of this guide rail for opening and closing, the operation is as claimed. 5 It is the same effect as described above.

[0020] Claims of the present invention 7 The structure of the guide rail for the opening and closing mechanism described is as described in the claim. 2 or 3 The structure of the guide rail for the opening and closing mechanism described above, The guide rail 53 is composed of a guide rail body 87 and a retaining rail portion 117 separate from the guide rail body 87, wherein the retaining rail portion 117 is provided with a fixing flange portion 115 on only one side, and the fixing flange portion 115 is fixed to the inner surface of one side of the guide rail body 87.

[0021] In the structure of this guide rail for opening and closing, the operation is as claimed. 2 It is the same effect as described above.

[0022] Claims of the present invention 8 The structure of the guide rail for the opening and closing mechanism described is as described in the claim. 4 The structure of the guide rail for the opening and closing mechanism described above, The guide rail 53 is composed of a guide rail body 87 and a retaining rail portion 117 separate from the guide rail body 87, wherein the retaining rail portion 117 is provided with a fixing flange portion 115 on only one side, and the fixing flange portion 115 is fixed to the inner surface of one side of the guide rail body 87.

[0023] In the structure of this guide rail for opening and closing, the operation is as claimed. 4 It is the same effect as described above. [Effects of the Invention]

[0024] According to the structure of the guide rail for an opening / closing body described in claim 1 of the present invention, a high-strength wind-resistant structure can be realized with good workability, and moreover, by being made of fire-resistant material, it can be used as a fire protection device.

[0025] In addition, Since the other side of the guide rail is covered by a housing frame consisting of a housing section and a cover made of fire-resistant material, the fire resistance of the guide rail with the retaining rail section can be enhanced by covering it with fire-resistant material, and the signal transmission member can be inserted using the space in the housing section, making it easy to attach the signal generating equipment to the housing frame. In addition, the stepped section creates a mounting structure in which the edge of the cover faces the bottom of the groove and is not exposed, thereby providing a good design.

[0026] Claims according to the present invention 2 and 3 According to the described structure of the guide rail for opening and closing, the mounting frame that covers one side of the guide rail facing the wall surface, which is equipped with an aluminum retaining rail section, consists of a fixed frame section of fire-resistant material fixed to the wall surface and a support frame section of fire-resistant material fixed to one side of the guide rail and fixed to the fixed frame section. The support frame section can be attached to the wall surface while covering the guide rail, as the claws of the rear piece of the support frame section can be hooked onto the rear piece of the fixed frame section, and the front piece of the support frame section can be fastened to the front piece of the fixed frame section with a fastening means.

[0027] Claims according to the present invention 4According to the described structure of the guide rail for opening and closing parts, the right-angle portion consisting of the rear piece and claw piece of the support frame allows the support frame to be assembled to the fixed frame from the opening side, and even if the wall surface has an inside corner, the mounting frame can be assembled along this inside corner and the guide rail can be installed, thus improving workability.

[0028] Claims according to the present invention 5 and 6 According to the described guide rail structure for opening and closing mechanisms, when wind pressure is applied to the opening and closing mechanism that widens the guide opening of the guide rail body, only the fixing flange on one side of the retaining rail section is fixed to the guide rail body. Therefore, the slit in the retaining rail section does not open along with the widening opening, making it difficult for the wind-resistant hook to come loose.

[0029] Claims according to the present invention 7 According to the structure of the guide rail for the opening and closing mechanism described, 2 The same effect as described above can be obtained.

[0030] Claims according to the present invention 8 According to the structure of the guide rail for the opening and closing mechanism described, 4 The same effect as described above can be obtained. [Brief explanation of the drawing]

[0031] [Figure 1] This is a front view of a shutter device equipped with the structure of a guide rail for opening and closing according to this embodiment. [Figure 2] This is an exploded perspective view of the guide rail for the opening / closing mechanism. [Figure 3] This is a cross-sectional view of the guide rail for the opening and closing mechanism. [Figure 4] Figure 3 is an exploded plan view of the guide rail for the opening and closing mechanism. [Figure 5] This is a plan cross-sectional view of the structure of the guide rail for the opening / closing mechanism according to modified example 1. [Figure 6] This is a plan cross-sectional view of the structure of the guide rail for the opening / closing mechanism according to modified example 2. [Figure 7](a) and (b) are cross-sectional views showing a further modification 3 of the structure of the guide rail for the opening and closing body according to Modification 1 and Modification 2. [Figure 8] This is a plan cross-sectional view of the structure of the guide rail for the opening / closing body according to the second embodiment. [Modes for carrying out the invention]

[0032] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a front view of a shutter device 11 equipped with a guide rail structure for opening and closing according to this embodiment. The structure of the guide rail for the opening / closing body according to this embodiment can be suitably used in a shutter device 11 that opens and closes an opening 13 of a structure using an opening / closing body 17, such as a shutter device 11 installed in a garage. The opening / closing body can be a general shutter curtain 17 made by connecting multiple steel slats 15, a curtain made by connecting panel materials or pipes, or a resin sheet-like curtain. The shutter curtain 17 closes the opening 13 when the base plate 19 sits on the floor surface 21.

[0033] The shutter device 11 is fixed to one of the indoor or outdoor walls 23 (see Figure 3) of a structure having an opening 13. In this embodiment, the shutter device 11 is described as being attached to an indoor wall 23 of a structure such as a house or a garage adjacent to a house. The shutter device 11 is assembled so that a shutter storage section 27 is stretched across a pair of left and right brackets 25 fixed to the wall 23 above the opening 13. The shutter storage section 27 houses a winding shaft 31 that is rotatable around one shaft 29 supported by the bracket 25 and winds up the shutter curtain 17, an opening / closing mechanism 35 that rotates the other shaft head 33 of the winding shaft 31 to rotate the winding shaft 31 in forward and reverse directions, and a control unit 37 that drives and controls the opening / closing mechanism 35. The opening / closing mechanism 35 is connected to the control unit 37 and also to a signal generating device by a signal transmission member described later.

[0034] The signal generating equipment and signal transmission members are provided in a housing frame, described later, which constitutes the structure of the guide rail for the opening and closing body. The signal generating equipment includes a manual switching device 39 that sends a manual switching signal to the opening and closing mechanism 35, and an obstacle detection sensor 41 that sends an electrical opening and closing body stop signal to the control unit 37. The signal transmission members include a wire 43 that transmits the manual switching signal from the manual switching device 39 to the opening and closing mechanism 35, and a signal wire 45 that transmits an electrical opening and closing body stop signal from the obstacle detection sensor 41 to the control unit 37.

[0035] The opening / closing mechanism 35 drives the winding shaft 31 by adjusting the rotational speed and torque of the electric motor using a gear mechanism. The rotation of the electric motor is transmitted to the winding shaft 31 via a chain and sprocket. The opening / closing mechanism 35 is connected to a signal generating device (manual switching device 39) by a signal transmission member (wire 43) which, when the operating part 47 is pulled, disconnects the power transmission path between the electric motor and the winding shaft 31, allowing the shutter curtain 17 to be opened and closed manually. The mechanism for disconnecting the power transmission path is composed of a clutch mechanism or the like.

[0036] The control unit 37 is an electronic circuit equipped with a CPU. The control unit 37 is connected to a signal generating device (obstacle detection sensor 41) and a signal transmission member (signal wire 45), for example, located facing the opening 13. The obstacle detection sensor 41 is a non-contact sensor that detects obstacles in the direction of movement of the shutter curtain 17, such as a photoelectric sensor or a photoelectric conversion element sensor. The control unit 37 processes signals from the obstacle detection sensor 41 and operating switches (not shown), and controls the opening / closing mechanism 35 according to the processing results.

[0037] Figure 2 is an exploded perspective view of the guide rail 49 for the opening and closing mechanism. The structure of the guide rail for the opening and closing mechanism according to this embodiment includes a guide rail 49 for the opening and closing mechanism that guides the shutter curtain 17 which moves in a direction parallel to the wall surface 23 in the opening 13.

[0038] The guide rail 49 for the opening and closing mechanism is broadly divided into a mounting frame 51, a guide rail 53, and a housing frame 55.

[0039] The mounting frame 51 is made of a fire-resistant material such as steel and is fixed to the wall surface 23 by fixing screws 57 (see Figure 3), which are fixing means.

[0040] The guide rail 53 is covered by the mounting frame 51, with one side being detachably fixed. The guide rail 53 has a retaining rail portion 61 into which a windproof hook 59 (see Figure 3) provided on the shutter curtain 17 engages.

[0041] The housing frame 55 is made of a fire-resistant material such as steel and is detachably fixed to the other side of the guide rail 53 opposite to the mounting frame 51, covering the other side. A manual switching device 39 is attached to the housing frame 55, which is connected to the opening / closing mechanism 35 that drives the opening and closing of the shutter curtain 17 via a wire 43 inserted into the inner space 63, and faces the opening 13 at a predetermined height from the floor surface 21. In addition to the manual switching device 39, an obstacle detection sensor 41 (see Figure 1) is attached to the housing frame 55 at a predetermined height from the floor surface 21 and connected to the control unit 37 by a signal wire 45. This sensor 41 is located in the front section 73 of the housing, which will be described later.

[0042] Figure 3 is a plan cross-sectional view of the guide rail 49 for the opening and closing mechanism. In this embodiment, the housing frame 55 is composed of a housing section 65 and a cover 67. The housing section 65 is fixed to the other side of the guide rail 53 by rivets 69, which are fixing means. The housing section 65 opens the inner space 63 along the guide rail 53 through a groove opening 71 (see Figure 2) provided on the side of the housing section opposite the guide rail 53. The cover 67 covers the groove opening 71 and is detachably fixed to the housing section 65.

[0043] Figure 4 is an exploded plan view of the guide rail 49 for the opening and closing mechanism shown in Figure 3. The housing section 65 has a recessed section 75 formed in a part of the front piece 73 of the housing section facing the opening 13, where the signal generating device (manual switching device 39) is mounted. The recessed section 75 has a notch 77 (see Figure 2) for inserting and mounting a part of the manual switching device 39. In the structure of the guide rail for the opening and closing body, by making the mounting part of the manual switching device 39 the recessed section 75, the manual switching device 39 can be mounted only in the housing section 65 without overlapping the housing section 65 and the cover 67, meaning that processing such as notches in the cover 67 is unnecessary.

[0044] The cover 67 is provided with a claw portion 79 (see Figure 2) on the inner cover piece 81 that engages with the groove opening 71 from the inside. The claw portion 79 is formed by bending at an acute angle. The bending angle of the claw portion 79 is, for example, 20 to 80°, preferably 60°. The claw portion 79 has this angle, making the cover 67 easy to install and less likely to fall off. In addition, the acute angle of the claw portion 79 also makes the cover 67 less prone to looseness. The cover 67 is provided with an L-shaped bent portion 83 (see Figure 2) on the front cover piece 85, which is fastened to the front receiving piece 73 by fixing screws 57, and whose bent tip engages with the stepped portion 75. The L-shaped bent portion 83 of the cover 67 allows the edge to be hooked into the stepped portion 75 and directed toward the bottom of the groove, preventing it from being exposed. This makes it possible to neatly finish the edge of the sheet metal material.

[0045] The guide rail 49 for opening and closing the shutter consists of a guide rail 53 which comprises an aluminum retaining rail portion 61 and a guide rail body 87 made of a fire-resistant material such as steel, which is integrally fixed to the retaining rail portion 61 by rivets 69. The guide rail body 87 has a roughly U-shape in cross-section and has a guide opening 89 that extends in the vertical direction into which the side edge of the shutter curtain 17 is inserted, sandwiching it in the thickness direction. A resin cushioning member 91 is attached to the opposing parts of the guide rail body 87 that sandwich the guide opening 89 to mitigate the impact of the shutter curtain 17.

[0046] The guide rail body 87 has a retaining rail portion 61 inserted into it from one end in the longitudinal direction. The retaining rail portion 61 inserted into the guide rail body 87 has a pair of fixing flanges 93 that protrude perpendicularly from both sides to the wall surface 23, which are fixed to the back plate portion 95 on the side opposite to the guide opening 89 of the guide rail body 87 by rivets 69. The retaining rail portion 61 fixed to the guide rail body 87 is prevented from coming off when the constricted portion of the windproof hook 59 attached to the side edge of the shutter curtain 17 inserted through the guide opening 89 engages with the slit 97 formed between the pair of hooks.

[0047] Furthermore, the guide rail 49 for opening and closing the mechanism consists of a mounting frame 51 which comprises a fixed frame portion 99 fixed to the wall surface 23 by fixing screws 57, and a support frame portion 101 fixed to one side of the guide rail 53 by rivets 69. The support frame portion 101 has a claw piece 107 formed on the rear piece 105 of the support frame portion opposite to the opening 13 that engages with the rear piece 103 of the fixed frame portion 99 fixed to the wall surface 23. Specifically, the rear piece 103 of the fixed frame portion is spaced apart from the rear piece 112 of the fixed frame portion 99 and is formed as a protruding piece parallel to the rear piece 112. The rear piece 105 of the support frame portion 101 is bent parallel to the front piece 109 of the support frame portion. The claw piece 107 is bent perpendicular to the rear piece 105 of the support frame portion. Then, the rear piece 105 of the support frame and the rear piece 103 of the fixing frame are superimposed, the claw piece 107 engages with the rear piece 105 of the fixing frame, and with the tip of the claw piece 107 pointing toward the rear piece 112 of the fixing frame, the support frame 101 is fixed to the fixing frame 99. In addition, the front piece 109 of the support frame facing the opening 13 is fixed to the front piece 111 of the fixing frame 99 by fixing screws 57. The right-angle portion consisting of the rear piece 105 of the support frame and the claw piece 107 allows the support frame 101 to be installed by inserting the rear piece 105 of the fixing frame from the opening 13 side when the fixing frame 99 is fixed along the wall surface 23 or the inner corner, without interference with the inner wall surface 23 of the opening 13 or the inner corner along this wall surface 23, and the fixing direction only needs to be from the opening 13 side, improving workability.

[0048] Next, we will describe a modified example 1 of the above-described configuration.

[0049] Figure 5 is a plan cross-sectional view of the structure of the guide rail for the opening / closing mechanism according to Modification 1. The structure of the guide rail for opening and closing according to Modification 1 is such that the retaining rail portion 113 has a pair of fixing flange portions 115 parallel to the wall surface 23 on both sides of the slit 97. One fixing flange portion 115 is fixed by a rivet 69 that passes through the fixing flange portion 115, the guide rail body 87, and the support frame portion 101. The other fixing flange portion 115 is fixed by a rivet 69 that passes through the fixing flange portion 115, the guide rail body 87, and the housing portion 65.

[0050] According to the structure of the opening / closing guide rail in this modified example 1, the four components—the retaining rail portion 113, the guide rail body 87, the support frame portion 101, and the housing portion 65—can be fastened together and fixed integrally. Furthermore, since the two surfaces of the guide rail body 87 that sandwich the shutter curtain 17 are fixed to the support frame portion 101 and the housing portion 65, the opening of the guide rail body 87 when a load is applied to the shutter curtain 17 can be suppressed. In addition, since the rivets 69 that fasten the fixing flange portion 115 are not exposed outside the back plate portion 95, the design of the guide rail 49 is not reduced.

[0051] Next, a modified example 2 of the above-described configuration will be explained.

[0052] Figure 6 is a plan cross-sectional view of the structure of the guide rail for the opening / closing mechanism according to modified example 2. The structure of the guide rail for opening and closing according to the modified example 2 is such that the retaining rail portion 117 has a fixing flange portion 115 parallel to the wall surface 23 on one side of the slit 97. The fixing flange portion 115 may be provided only on the housing portion side, for example, or conversely, only on the support frame portion side. In other words, the fixing flange portion 115 only needs to be provided on one side. The fixing flange portion 115 is fixed by rivets 69 that pass through the fixing flange portion 115, the guide rail body 87, and the housing portion 65.

[0053] According to the structure of the opening / closing guide rail in this modified example 2, when wind pressure is applied to the shutter curtain 17 such that the guide opening 89 of the guide rail body 87 is widened, only the fixing flange 115 on one side of the retaining rail portion 117 is fixed to the guide rail body 87. Therefore, the slit 97 of the retaining rail portion 117 does not open along with the widening opening 89, making it difficult for the windproof hook 59 to come loose.

[0054] Next, a modified example 3 of the above-described configuration will be explained.

[0055] Figures 7(a) and 7(b) are plan cross-sectional views showing a further modified example 3 of the structure of the guide rail for the opening / closing body according to Modified Example 1 and Modified Example 2. The structure of the guide rail for the opening / closing body according to Modification 3 is configured without a stepped section 75. In this case, the manual switching device 39 is attached to the notch 77 formed in the housing section 65 and the cover 67. By arranging the manual switching device 39 and the fixing screws 57 in a straight line vertically, and by not providing a stepped section 75, the thickness of the guide rail 49 for the opening / closing body (distance perpendicular to the wall surface 23) can be kept small. As a result, the guide rail 49 for the opening / closing body can be made slimmer and more compact.

[0056] Next, the operation of the configuration of the first embodiment described above will be explained.

[0057] In the structure of the guide rail for the opening / closing mechanism according to this embodiment, the guide rail 49 for the opening / closing mechanism that guides the shutter curtain 17 is fixed to one of the walls 23, either indoors or outdoors, of the structure having the opening 13. Preferably, the one wall 23 is an indoor wall 23. In this case, the wall of the structure can act as a barrier that delays the spread of fire from outdoors to indoors.

[0058] The guide rail 53 has a retaining rail portion 61 into which the windproof hook 59 of the shutter curtain 17 is locked. The retaining rail portion 61 may be integrally formed as part of the guide rail 53, or it may be formed separately and then integrally fixed.

[0059] The guide rail 53, which has a retaining rail portion 61, has one side facing the wall surface 23 fixed to the wall surface 23 by a mounting frame 51. On the other hand, the guide rail 53 has a housing frame 55 fixed to the other side opposite to the mounting frame 51. In other words, the guide rail 49 for opening and closing is a structure assembled in the order of mounting frame 51, guide rail 53, and housing frame 55 from the indoor wall surface 23 of the structure. As a result, the guide rail 53 with the retaining rail portion 61 is covered in a state where it is sandwiched in the wall thickness direction by the fire-resistant mounting frame 51 and housing frame 55.

[0060] The structure of the guide rail for the opening and closing mechanism is such that the guide rail 53, which has a retaining rail section 61, is fixed to the wall surface 23 by a mounting frame 51. The windproof hooks 59 of the shutter curtain 17 can be attached to the retaining rail section 61, so that both side edges of the shutter curtain 17 can be firmly and securely prevented from coming off.

[0061] Furthermore, the structure of the guide rail for the opening and closing mechanism allows one side of the guide rail 53, which has a retaining rail portion 61, to be detachably assembled to a mounting frame 51 that is pre-fixed to the wall surface 23 of the structure. During construction, the guide rail 53 can be temporarily attached to the mounting frame 51 and then permanently fixed. When replacing the guide rail, the guide rail 53 can be detached from the mounting frame 51 after releasing its fixation to the mounting frame 51. As a result, the structure of the guide rail for the opening and closing mechanism eliminates the need for welding or chipping work on the structure, enabling assembly, disassembly, and replacement with good workability.

[0062] Furthermore, since the mounting frame 51 and housing frame 55 that sandwich the guide rail 53 are both made of fire-resistant material such as steel, the effects of flames during a fire on the retaining rail portion 61 can be suppressed compared to a configuration in which non-fire-resistant material such as aluminum is used for these components. In other words, the strength (fire resistance) of the opening and closing guide rail 49 when exposed to flames can be increased.

[0063] Furthermore, the housing frame 55, which covers and fixes the other side of the guide rail 53, has an internal space 63 that can be used as a space for inserting a signal transmission member. Therefore, a signal generating device attached to the surface of the housing frame 55 facing the opening 13, i.e., the front piece 73 of the housing section, can be easily connected to the switch 35 using the space 63 of the housing frame 55.

[0064] Furthermore, in the structure of this opening / closing guide rail, the housing frame 55 consists of a housing section 65 and a cover 67 made of a fire-resistant material such as steel. The housing section 65 is fixed to the other side of the guide rail 53, and the inner space 63 along the guide rail 53 is opened by a groove opening 71 (see Figure 2) provided on the side of the housing section opposite the guide rail 53. That is, after the housing section 65 is fixed to the guide rail 53, the cover 67 is fixed, and the groove opening 71 is covered by the cover 67. The housing section 65 can be fixed to the guide rail 53 by rivets 69 through the groove opening 71.

[0065] The guide rail 49 for opening and closing the door has a housing frame 55 consisting of a housing section 65 and a cover 67 made of fire-resistant material, which is attached to the guide rail 53, so that the other side is covered with fire-resistant material. This provides high fire resistance. In addition, since the housing frame 55 has a space 63 that extends vertically inward, the heat shielding performance against flames during a fire can also be enhanced.

[0066] The housing section 65 has a recessed stepped section 75 (see Figure 2) formed in a part of the housing section front piece 73 (see Figure 2) facing the opening 13, into which the signal generating equipment is mounted. The stepped section 75 is recessed compared to the housing section front piece 73 by bending the housing section front piece 73 in a stepped manner toward the space 63. In other words, the stepped section 75 is a vertical groove recessed along the guide rail 53 between the guide rail 53 and the housing section front piece 73. The housing section 65 is mounted by inserting a part of the signal generating equipment into a notch 77 (see Figure 2) formed on the bottom surface of the groove of this stepped section 75.

[0067] Incidentally, signal generating equipment requires precision in the processing and fitting of its components, so it is common to use aluminum guide rails 53. If steel rails were to be used, notches for mounting the signal generating equipment would need to be made in both the housing section 65 and the cover 67. However, since these are processed separately, aligning the notches in both sections is difficult, and if they do not align, it may become impossible to mount the signal generating equipment. In this case, it is also possible to mount the signal generating equipment on the outer shell cover 67, but this would result in poor workability and a deterioration in aesthetics.

[0068] In contrast, the structure of the guide rail for the opening and closing body only requires the formation of a stepped section 75 in the housing section 65 and a notch 77 only in the stepped section 75, thus eliminating the need to align it with the notch formed in the cover 67. This makes it easy to attach the cover 67. Furthermore, since there is no misalignment, the signal generating equipment is mounted accurately, eliminating the risk of malfunction of the signal generating equipment and preventing any compromise in aesthetics. Moreover, since the notch 77 is provided on the bottom surface of the groove of the stepped section 75, the finished structure of the mounting part is not conspicuous, eliminating the need for other cutting processes, which also contributes to a good aesthetic appearance.

[0069] The cover 67 is then secured to the housing section 65 with fixing screws 57, while the L-shaped bent portion 83 provided at the bent end of the cover 85 is hooked onto the stepped portion 75. This allows for a secure and easy installation by reducing the number of fastening points.

[0070] As a result, the other side of the guide rail 53 facing indoors is covered by a housing frame 55 consisting of a housing section 65 and a cover 67 made of fire-resistant material. This allows the guide rail 53, which has a retaining rail section 61, to be covered with fire-resistant material from indoors to enhance its fire resistance, and also allows a signal transmission member to be inserted through the space 63 of the housing section 65, making it easier to attach a signal generating device to the housing frame 55.

[0071] Furthermore, in the structure of this opening / closing guide rail, the guide rail 53 consists of a retaining rail section 61 and a guide rail body 87. The retaining rail section 61 and the guide rail body 87 are integrally fixed by rivets 69. The retaining rail section 61 is an extruded aluminum material and is a long member with dimensions approximately the same as the height of the opening 13. Extrusion molding allows for the precise and continuous molding of complex cross-sectional shapes. Because the retaining rail section 61 is an extruded aluminum material, the cross-sectional shape perpendicular to the longitudinal direction can be manufactured with high precision in a desired complex shape that engages with the windproof hook 59. In addition, the ability to create complex cross-sectional shapes allows for structural (shape) strength that cannot be obtained with steel bending, while being lighter than steel. As an example of obtaining structural strength with light weight, one can cite a structure (shape) in which the inner corner is filled with a molded material without changing the thickness of the orthogonal plate pieces.

[0072] Meanwhile, the guide rail body 87 becomes integrated with the retaining rail portion 61 by covering it from the outside. The guide rail 49 for opening and closing the device is supported on the wall surface 23 via the guide rail body 87 and the mounting frame 51, as the guide rail body 87 is fixed to the mounting frame 51. The guide rail 49 for opening and closing the device guides the windproof hook 59 with the retaining rail portion 61, which is molded with high precision and strength, housed and covered by the guide rail body 87.

[0073] As a result, the guide rail 49 for the opening and closing mechanism can achieve high strength and smooth opening and closing operation of the shutter curtain 17 compared to when the entire guide rail is made of steel, and it can also improve fire resistance compared to when the entire guide rail is made of aluminum.

[0074] As a result, the aluminum retaining rail section 61 can be covered by the guide rail body 87, which is made of a fire-resistant material such as steel, to form the guide rail 53. This allows the fire resistance of the guide rail 53 to be enhanced while simultaneously exhibiting the high precision and high strength wind resistance of the aluminum extruded material.

[0075] Furthermore, in the structure of this opening / closing guide rail, the mounting frame 51 is composed of a fixing frame portion 99 fixed to the wall surface 23 and a support frame portion 101 fixed to one side of the guide rail 53. That is, the mounting frame 51 is interposed between the wall surface 23 and the guide rail 53 to support the guide rail 53 on the wall surface 23. The aforementioned housing frame 55 is fixed to the other side of the guide rail 53 which is supported on the wall surface 23 via the mounting frame 51. In other words, the structure of the opening / closing guide rail is arranged in the order of mounting frame 51, guide rail 53, and housing frame 55 from the wall surface 23, and the guide rail 53 is attached to the wall surface 23 in a state where it is sandwiched and covered by the mounting frame 51 and housing frame 55, which are made of fire-resistant material.

[0076] The mounting frame 51, consisting of a fixed frame section 99 and a support frame section 101, is first fixed to the wall surface 23 by the fixed frame section 99. Meanwhile, the support frame section 101 is fixed in advance to one side of the guide rail 53. In other words, the support frame section 101, together with the guide rail 53, becomes a connecting member for connecting and fixing the guide rail 53 to the fixed frame section 99.

[0077] Thus, in the structure of the guide rail for opening and closing, in which the fixed frame portion 99 is fixed to the wall surface 23 and the support frame portion 101 is fixed to the guide rail 53, the support frame portion 101 fixed to the guide rail 53 is temporarily supported by engaging with the fixed frame portion 99. This engagement is performed by hooking a claw piece 107 formed on the rear piece 105 of the support frame portion onto the rear piece 103 of the fixed frame portion 99. The support frame portion 101, with the claw piece 107 hooked onto the rear piece 103 of the fixed frame portion, has its front piece 109 facing the opening 13 fixed to the front piece 111 of the fixed frame portion 99 by fixing screws 57.

[0078] As a result, the guide rail 53 is easily and securely fixed to the wall surface 23 via the mounting frame 51, which is composed of the fixing frame 99 and the support frame 101, by fixing the support frame 101 fixed to the guide rail 53 to the fixing frame 99 fixed to the wall surface 23.

[0079] Furthermore, by unfastening the fixing screws 57 that secure the front support frame section 109 to the fixed frame section 99, the claws 107 of the rear support frame section 105 can be released from engaging with the rear support frame section 103, allowing for easy attachment and detachment from the fixed frame section 99. In other words, maintenance such as the replacement of consumables and damaged parts can be easily performed.

[0080] As a result, the structure of the opening and closing guide rail consists of a mounting frame 51 that covers one side of the guide rail 53 facing the wall surface 23, which is equipped with an aluminum retaining rail section 61, and a fire-resistant material fixing frame section 99 that is fixed to the indoor wall surface 23, and a fire-resistant material support frame section 101 that is fixed to one side of the guide rail 53 and fixed to the fixing frame section 99. The support frame section 101 can be attached to the fixing frame section 99 by hooking the claw piece 107 of the support frame section's rear piece 105 onto the fixing frame section's rear piece 103, and fastening the support frame section's front piece 109 to the fixing frame section's front piece 111 with fixing screws 57, so that the guide rail 53 can be easily attached to the wall surface 23 while ensuring fire resistance.

[0081] Next, a second embodiment will be described.

[0082] Figure 8 is a plan cross-sectional view of the structure of the guide rail for the opening / closing body according to the second embodiment. In the second embodiment, members and parts equivalent to those shown in Figures 1 to 7 are denoted by the same reference numerals, and redundant explanations are omitted. The structure of the guide rail for the opening / closing mechanism according to the second embodiment consists of a mounting frame 51 made of fire-resistant material and fixed to the wall surface 23, a guide rail 53 having a retaining rail portion 61 on one side that is detachably fixed to and covered by the mounting frame 51 and into which a windproof hook 59 provided on the shutter curtain 17 engages, and a housing frame 55 made of fire-resistant material that is detachably fixed to the other side of the guide rail 53 opposite to the mounting frame 51 and covers the other side, and is connected to an opening / closing mechanism 35 that drives the shutter curtain 17 to open and close via a signal transmission member inserted into an internal space 63, and is configured to house a signal generating device that faces the opening 13 at a predetermined height from the floor surface 21.

[0083] In the second embodiment, the guide rail 121 for the opening / closing body is formed as a single unit comprising a mounting frame 51, a housing frame 55, and a guide rail 53. Specifically, the mounting frame 51 and the housing frame 55 are made of fire-resistant material such as steel, while the guide rail 53 is made of non-fire-resistant material such as aluminum. The guide rail 53 has a pair of fixing flanges 123 perpendicular to the wall surface 23 on both sides of the guide opening 89. One pair of fixing flanges 123 of the guide rail 53 is fastened to the front piece 125 of the mounting frame 51 with fixing screws 57, and the other fixing flange 123 is fastened to the front piece 127 of the housing frame 55 with fixing screws 57. Furthermore, the back plate portion 95 of the guide rail 53 is covered with an L-shaped bent rail material 129 made of fire-resistant material such as steel. The L-shaped bent rail material 129 is fixed to the back plate portion 95 of the guide rail 53 by rivets 69, and the L-shaped bent portion 131 on the housing frame side engages with the crank-shaped bent support frame rear piece 133.

[0084] According to the structure of the guide rail for the opening and closing body of this second embodiment, by providing an L-shaped bent rail material 129 made of fire-resistant material on the back plate portion 95 of the guide rail 53, the exposure of the aluminum portion is prevented, and compliance with fire protection equipment can be expected. Furthermore, since the support frame portion 101 and housing portion 65 used in the first embodiment are not required, signal generating equipment and signal transmission members can be installed with a simpler structure and construction, and the number of components can also be reduced.

[0085] Therefore, according to the structure of the guide rail for the opening and closing mechanism of this embodiment, a high-strength wind-resistant structure can be realized with good workability, and moreover, it can be used as a fire protection device. [Explanation of Symbols]

[0086] 13…Opening 17…Opening / closing mechanism (shutter curtain) 21... Floor surface 23...Wall 35... Opening / closing mechanism 39…Signal generating equipment (manual switching device) 41…Signal generating device (obstacle detection sensor) 43…Signal transmission component (wire) 45…Signal transmission components (signal wires) 49… Guide rail for opening / closing mechanism 51…Mounting frame 53… Guide rail 55…Capacity 57… Fixing means (fixing screws) 59... Windproof hook 61... Retaining rail section 63…Space 65...Detention Unit 67...cover 69… means of fastening (rivet) 71… Groove opening 73... Front of the containment section 75... Step drop section 79… Nail area 81... Cover back piece 83...L-shaped bend 85... Front cover 87... Guide rail body 99...Fixed frame section 101...Support frame section 103...Rear piece of fixed frame 105...Inner part of support frame 107... Nail fragments 109... Front piece of support frame 111...Front piece of fixed frame 112... Rear piece of fixed frame 113... Retaining rail section 117... Retaining rail section 121... Guide rail for opening / closing mechanism

Claims

1. A guide rail for an opening / closing body, which is fixed to one wall surface inside or outside a structure having an opening, and guides an opening / closing body that moves in a direction parallel to the wall surface within the opening, A mounting frame made of fire-resistant material and fixed to the wall surface, A guide rail having one side detachably fixed to and covered by the aforementioned mounting frame, and having a retaining rail portion into which a windproof hook provided on the opening / closing body engages, The structure comprises a fire-resistant material, which is detachably fixed to the other side of the guide rail opposite to the mounting frame and covers the other side, and a housing frame to which a signal generating device is mounted, which is connected to the opening / closing mechanism that drives the opening and closing of the opening / closing body via a signal transmission member inserted into the internal space and faces the opening at a predetermined height from the floor, The housing frame is fixed to the other side of the guide rail and consists of a housing that opens the inner space along the guide rail through a groove opening provided on the housing side opposite the guide rail, and a cover that covers the groove opening and is detachably fixed to the housing. The housing section has a recessed portion formed in a part of the front piece of the housing section facing the opening, where the signal generating device is mounted. The cover is provided with a claw portion on the inner part of the cover that engages with the groove opening from the inside, and an L-shaped bent portion on the front part of the cover that is fastened to the front part of the housing by a fixing means and whose bent tip engages with the stepped portion. A guide rail structure for opening and closing mechanisms characterized by the following.

2. A guide rail for an opening / closing body, which is fixed to one wall surface inside or outside of a structure having an opening, and guides an opening / closing body that moves in a direction parallel to the wall surface within the opening, A mounting frame made of fire-resistant material and fixed to the wall surface, A guide rail having one side detachably fixed to and covered by the aforementioned mounting frame, and having a retaining rail portion into which a windproof hook provided on the opening / closing body engages, The structure comprises a fire-resistant material, which is detachably fixed to the other side of the guide rail opposite to the mounting frame and covers the other side, and a housing frame to which a signal generating device is mounted, which is connected to the opening / closing mechanism that drives the opening and closing of the opening / closing body via a signal transmission member inserted into the internal space and faces the opening at a predetermined height from the floor, The mounting frame is composed of a fixing frame portion fixed to the wall surface and a support frame portion fixed to one side of the guide rail. The support frame portion is such that a claw formed on the rear piece of the support frame portion opposite to the opening is hooked onto the rear piece of the fixed frame portion of the fixed frame portion fixed to the wall surface, and the front piece of the support frame portion facing the opening is fixed to the front piece of the fixed frame portion by a fixing means. A guide rail structure for opening and closing mechanisms characterized by the following.

3. The housing frame is fixed to the other side of the guide rail and consists of a housing that opens the inner space along the guide rail through a groove opening provided on the housing side opposite the guide rail, and a cover that covers the groove opening and is detachably fixed to the housing. The housing section has a recessed portion formed in a part of the front piece of the housing section facing the opening, where the signal generating device is mounted. The structure of the guide rail for an opening / closing body according to claim 2, characterized in that the cover has a claw portion on the inner part of the cover that engages with the groove opening from the inside, and an L-shaped bent portion on the front part of the cover that is fastened to the front part of the housing portion by a fixing means and whose bent tip engages with the stepped portion.

4. The rear piece of the fixed frame is spaced apart from the rear piece of the fixed frame and is formed as a protruding piece parallel to the rear piece of the fixed frame. The rear part of the support frame is formed by bending it parallel to the front part of the support frame. The aforementioned claw piece is formed by bending perpendicularly to the inner piece of the support frame, The structure of a guide rail for an opening / closing body according to claim 2 or 3, characterized in that the rear piece of the support frame and the rear piece of the fixed frame are superimposed, the claw piece engages with the rear piece of the fixed frame, and the tip of the claw piece faces the rear piece of the fixed frame, thereby fixing the support frame to the fixed frame.

5. A guide rail for an opening / closing body, which is fixed to one wall surface inside or outside of a structure having an opening, and guides an opening / closing body that moves in a direction parallel to the wall surface within the opening, A mounting frame made of fire-resistant material and fixed to the wall surface, A guide rail having one side detachably fixed to and covered by the aforementioned mounting frame, and having a retaining rail portion into which a windproof hook provided on the opening / closing body engages, The structure comprises a fire-resistant material, which is detachably fixed to the other side of the guide rail opposite to the mounting frame and covers the other side, and a housing frame to which a signal generating device is mounted, which is connected to the opening / closing mechanism that drives the opening and closing of the opening / closing body via a signal transmission member inserted into the internal space and faces the opening at a predetermined height from the floor, The guide rail is composed of a guide rail body and a retaining rail portion separate from the guide rail body, the retaining rail portion having a fixing flange on only one side, and the fixing flange being fixed to the inner surface of one side of the guide rail body. A guide rail structure for opening and closing mechanisms characterized by the following.

6. The housing frame is fixed to the other side of the guide rail and consists of a housing that opens the inner space along the guide rail through a groove opening provided on the housing side opposite the guide rail, and a cover that covers the groove opening and is detachably fixed to the housing. The housing section has a recessed portion formed in a part of the front piece of the housing section facing the opening, where the signal generating device is mounted. The structure of the guide rail for an opening / closing body according to claim 5, characterized in that the cover has a claw portion on the inner part of the cover that engages with the groove opening from the inside, and an L-shaped bent portion on the front part of the cover that is fastened to the front part of the housing by a fixing means and whose bent tip engages with the stepped portion.

7. The guide rail structure for an opening / closing body according to claim 2 or 3, characterized in that the guide rail is composed of a guide rail body and a retaining rail portion separate from the guide rail body, the retaining rail portion is provided with a fixing flange portion on only one side, and the fixing flange portion is fixed to the inner surface of one side of the guide rail body.

8. The guide rail structure for an opening / closing body according to claim 4, wherein the guide rail is composed of a guide rail body and a retaining rail portion separate from the guide rail body, and the retaining rail portion is provided with a fixing flange portion on only one side, and the fixing flange portion is fixed to the inner surface of one side of the guide rail body.

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